Chicago's back to a sizable lead, but not as big as the start of the series. My knee jerk intuition is that that feels wrong; that they are closer to the end of the series, and still even with the other team, and thus should be getting closer to 100%. But if you consider that a longer series always favors a stronger team, and we've gone from a 7-game to a 5-game series now, it makes more sense. Also at the start of the series we'd expect Chicago to do a little better than 1-1 in the first 2 games on average, so again they are slightly worse off than previously expected. Of course you can only win or lose games in discrete chunks, necessitating that the numbers jump around a bit.